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Subject: Re: Thoughts on interfaces.

From: "Dave B" <bongo2001@...>
Date: 2007-04-18

--- In Simmons_Drums@yahoogroups.com, "superwolle70"
<superwolle70@...> wrote:
>
> Hm, I am really no talented tech, but reading the first
> page of the FSR doc tells me that the higher the force,
> the higher the resistance.

Actually it's just the opposite. The harder you press on them the
less the resistance.

> So technically naive as I am I could imagine that a
> permanent voltage runs through the SDX pads and when
> hitting the pad we get a voltage holler instead of a
> pulse. Is that possible?

You get a sudden drop in resistance. That can be converted to a
voltage spike, vaguely similar to what a piezo produces. There's a
circuit in the FSR pdf from earlier in the thread (page 23?) that
does that.

Dave

P.S. This is my third attempt to post a response to this. Is anyone
else having posting issues?